Results 51 to 60 of about 26,640 (293)

Highly Promiscuous Flavonoid Di-O-glycosyltransferases from Carthamus tinctorius L.

open access: yesMolecules
Safflower (Carthamus tinctorius L.) has been recognized for its medicinal value, but there have been limited studies on the glycosyltransferases involved in the biosynthesis of flavonoid glycosides from safflower.
Xiaoyu Xu   +9 more
doaj   +1 more source

Flavonoid Glycosides from Achillea roseo-albax [PDF]

open access: yesScientia Pharmaceutica, 2001
In the first detailed study of the flavonoid pattern of Achillea roseo-alba rutin, apigenin-7-O-ß-glucopyranoside, luteolin-7-O-ß-glucopyranoside, isorhamnetin-3-O-rutinoside, schaftoside, luteolin-4’-O-ß-glucopyranoside and 6-OH-luteolin-7-O-ß-glucopyranosid were proven in the methanolic extract of aerial parts of the plant. Additionally quercetin-3-O-
Denata Kasaj   +3 more
openaire   +2 more sources

Evaluation of the Antioxidant and Anti-Lipoxygenase Activity of Berberis vulgaris L. Leaves, Fruits, and Stem and Their LC MS/MS Polyphenolic Profile

open access: yesAntioxidants, 2023
Berberis vulgaris L. is currently widely studied for its antioxidant and chemopreventive properties, especially with regard to the beneficial properties of its fruits.
Anna Och   +6 more
doaj   +1 more source

Synthesis and antiproliferative activity of flavonoid triazolyl glycosides

open access: yes, 2018
Sixteen flavonoid triazolyl glycosides 4–19 were synthesized in good yields via Cu(I)-catalyzed azide-alkyne cycloadditions of terminal alkynes of flavonoids 1–3 with acetylated sugar azides followed by deacetylation with sodium methoxide in anhydrous ...
Gang-qiang Wang, Qiu-an Wang, Li-li Yan
core   +1 more source

Fermentation‐Induced Modulation of Polyphenolic Contents and Medicinal Activities in Annona squamosa Seeds

open access: yesFood Chemistry International, EarlyView.
The study compared the medicinal activities of polyphenols from fermented and unfermented seeds of Annona squamosa. The polyphenols were extracted and subjected to standard analysis. The major phenolic components of the fermented polyphenols and the unfermented polyphenols were found to be 4‐hydroxybenzoic and 4‐hydroxyphenylacetic acid, respectively ...
Shola Hezekiah Awojide   +10 more
wiley   +1 more source

Potential of Bee Pollen as a Nutraceutical And/Or Functional Ingredient for Metabolic Syndrome Management: In Vitro Antioxidant, Anti‐Inflammatory, and Digestive Enzyme Inhibitory Activities

open access: yesFood Chemistry International, EarlyView.
Bee pollen samples from China and Spain exhibited in vitro antioxidant, anti‐inflammatory, and digestive enzyme inhibitory activities due to their composition, suggesting their potential as a nutraceutical or functional ingredient to help counteract oxidative stress, chronic inflammation, and metabolic disorders.
Adriana Maite Fernández‐Fernández   +9 more
wiley   +1 more source

Optimising the Eco‐Friendly Extraction of Carotenoids From Gac Fruit: A Sustainable Solution for Natural Red Food Colourants

open access: yesFood Chemistry International, EarlyView.
Gac fruit's high carotenoid content, especially in the aril, makes it an excellent natural red pigment source for food applications, offering a safer alternative to synthetic dyes. Ethanol extraction achieved the highest overall pigment recovery (89.53%), whereas ethyl lactate extraction yielded the highest levels of total carotenoids, β‐carotene ...
N. Netravati   +4 more
wiley   +1 more source

Metabolism of quercetin and kaempferol by rat hepatocytes and identification of flavonoid glycosides in plasma

open access: yes, 2002
The metabolism of the flavonoids quercetin and kaempferol by rat hepatocytes was investigated using liquid chromatography coupled with electrospray mass spectrometry (LC-ESI MS). Quercetin and kaempferol were extensively metabolized (98.8 +/- 0.1% and 81.
Oliveira, E.D.J.   +2 more
core   +1 more source

Advances in Anthocyanin Recovery and Purification From Natural Sources: Bioavailability, Mechanistic Action in the Human Body and Applications in Novel Food Development

open access: yesFood Chemistry International, EarlyView.
This review highlights green recovery, purification, stabilisation, bioavailability, health relevance, and novel food applications of anthocyanins from natural and agro‐industrial sources. ABSTRACT Anthocyanins are water‐soluble natural pigments and multifunctional food ingredients that support clean‐label colour, antioxidant activity, and value‐added ...
Chandan Kumar Sahu   +4 more
wiley   +1 more source

Characterization of a heat responsive UDP: Flavonoid glucosyltransferase gene in tea plant (Camellia sinensis). [PDF]

open access: yesPLoS ONE, 2018
Tea plant (Camellia sinensis) accumulates abundant flavonoid glycosides that are the major bioactive ingredients in tea. Biosynthesis of flavonoid glycosides are catalyzed by UDP-glucosyltransferases (UGTs) that are widely present in plants.
Xiaojia Su   +5 more
doaj   +1 more source

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